Radiant oven and broiler burner



April 6, 1948.

R. J. GREENE RADIANT OVEN AND BROILER BURNER Filed Dec. 4, 1943 1a 1- tK I 1 20' 30 20 I 6;? 2 j 1? JP 2 23 2, 26 15 Z6 23 35 Z6 1.5 16

59- ficgymard J 6766M April l948- R. J. GREENE 1 2,438,996

RADIANT OVEN AND BROILER BURNER Filed Dec. 4, 1943 2 Sheets-Sheet 2 II\I v I 1p 35- v ZP 20 2,33 2m g0 fig I w 2 27 l /lll// IIO'I/ 3 Z5 J6 15I JP 2 33 JP JP 33 #3 77 k w awe/Wm Graeme Patented Apr. 6, 1948 (UNITEDSTATES m rsNr "()F FICE 2,438,996 v V RADIANT ovEN AND nnoititahbitfitit Raymond J. Greene, s eb ringbhio Application December 4,1943, serial No. "512.9132

The jinvention relates toe, conibination oven heat downward into thebroiler or permitting the heat to; circulate upward into the oven.

Under present practice, gascookihg stoves of the'character referred toare commonl provided with? Sin le burner for heating boththe oven andthe broiler, but since such burners are de- 1 signed pri-marily to heattheoven by circulation of heatupward from the burner the maximum heat ofthe burner is not obtained in the broiler.

While efforts have been made to produce a burner which will heat thebroiler more eilicie-ntly by fi'x'ing a substantially -l J-shape ceramicradiant over the top and sides of the burner pipe so as to radiate theheat downward into the broilersuch "devicesdecrease the efficiency ofthe burner for heating the oven.

It is therefore an object of the present invention to provide a burnerfor heating the oven by circulating heat or :for heating the broiler byradiated heat, as desired.

Another object is to provide a burner including a burner pipe and anadjustable radiant arranged to be moved to a position just above theflame jets of the pipe tof-radiate the heat downwardinto the broilerortoga position away from the flame jets to permit the heat to airculateupward into the oven.

A further object is toprovide a burner of this type in which the radiantis vertical-1y rmovableto positions above and, below the flame jetsofthejburner pipe.

A, still further object is the provision, of such a burner in which aplurality of radiants are simultaneously moved relative to the burnerDipes so as to change from downwardly radiated heat to upwardlycirculating heat or vice versa.

Another object is to provide a burner of the character referred to inwhich when the radiants are raised the flame impinges upon the radiantsso as to radiate all of the heat downward into the broiler and when theradiants are lowered outs 01f all radiant heat downward and conducts allcirculating heat from the burner pipes upward into the oven.

The above objects together with others that will be apparent from thedrawings and following description, or that may be later referred to,may be attained by constructing the improved burner in the mannerillustrated in the accompanying drawings, in which:

2 Claims. (01. 158-499) Figural is a front elevation partlyinfsection, of the oven and-bfoiler of g the usual burnerjpipes 1" and li vane- 1 ntritisant? g shown associated with the fbru-rner in raised positionfor'hea'ting metre er; Fig. '2, a top pra'aview or theb1irn'er showninFig. 1; and Fig. 3, a vertical, n er's'e section through the u n r hfi e sition for heating the'oveir. I

Y Similar numerals 7 refer to similar yparts throughoutmthe drawings.The invention resides broadly the association of jraaiantse''r'aniie for"other Sui-tame material, th oriventional turner p efs, with means for,rr'nov fig the rti diaq flts tov hiir ontal, position jdst falbove theflairiie in order to heat the rad his an radiate all oi'the 'hea'tdownward into he brdil'e i" or to position bent the flame so as to shutoff fal diant heat to the broiler and 1561 "it bilcfilat'ion 6f the neatupward intothe oven. v f

j As illustrated; the i that; is assassinate any usual form of gas hurhch as new coin. monly used inovens and Bro er's, or more "substantially'hoiizo aliiiel fiipes are provided having openings tr fla'me jets alongcipbbsit'si es- V I In the form of the invest-a illus ra' describedherein a portion of a eoiiv' ti aneei ShOWn in Figure 1 infllli fi itindicated ene l y an rn'allyclosed by i l's ual :door il provid thehandle '12 for ion sa g t The broiler is indicated. w may be providedwith the usual shelf ra r an b i te 1;m 1 we to h b er f n sal-z npjn1.;

All of these parts may be of any usual and well known construction andarrangement, and in themselves form no part of the present inventionwhich is concerned with the construction and arrangement of the burneras will be later described.

The burner may be of the horseshoe or U- shape type in which two spaced,horizontal, parallel fuel pipes l5, each having the flame jets orapertures [5 formed in rows at each side, are connected at one end as bythe manifold IT to which the usual gas and air supply may be admitted asin usual and common practice.

As best shown in Figure 1 this burner is located as in usual practice inthe upper portion of the aren't-s in ibtereakpm.

broiler compartment l3 of the range and below the oven It).

With a burner of this general type, such as is ordinarily used in gasranges, the purpose is primarily to heat the oven by circulation of theheat upwards from the burner but under present practice the burner isnot efficient for heating the broiler because no positive device isprovided to increase the radiant efficiency of the burner and radiatethe heat downward into the broiler.

In order to increase the eificiency of the broiler as well as to permitproper circulation of the heat upward to the oven when desired, radiantsH, which may be of ceramic or other suitable material, are adjustablymounted on opposite sides of the burner pipes l5 for vertical movementto positions above and below the flame jets l6.

For the purpose of supporting the radiants I! in vertically adjustedpositions a frame is provided which may comprise the metal end membersl8 connected as by the central bar 19.

Each of the end members l8 of the frame may be provided near oppositeends with spaced depending legs 20 arranged to straddle thecorresponding burner pipe i5 and provided with the outturned feet 2lconnected as by the bolts 22 tc the bars 23 which are attached to theinner edges of the radiants I! as by bolts 24.

With the frame in lowered position, as shown in Fig. 3, the end membersl8 rest upon thetops of the fuel pipes l5 and the radiants I! arelocated below the flame jets [6 of the burner pipes.

For the purpose of manually adjusting the radiants relative to-theburner pipes any suitable device may be provided, such as the uprightpost 25 connected to the central bar IQ of the frame and provided with anotch 26 adapted to be engaged by the bolt 21 for holding the frame inthe raised position as indicated in Figure 1.

In this position of the device the radiants I! extend outwardly at eachside of the burner pipe just above the flame jets l6 so that the framesimpinge upon the radiants heating them so that the heat is radiateddownwardly directly upon the food in the broiler.

With the radiants in the lowered position, as shown in Fig. 3, it willbe seen that the radiants are located below the flame jets I6 cuttingoil radiated heat to the broiler and permitting all of the heat from theburners to circulate upward into the oven.

With this construction it will be seen that the maximum heat of theburners may be obtained either in the oven or the broiler as desired sothat either the oven or broiler may be operated at the utmosteillciency.

I claim:

1. An oven and broiler burner including a plurality of parallel fuelpipes each having flame jets along opposite sides thereof, a verticallyadjustable frame including end frame members located above opposite endportions of the fuel pipes and disposed transversely thereof, alongitudinally disposed central bar connecting the end frame members,each end frame member having inverted, U-shape portions straddling theend portions of the pipes, horizontal imperforate radiants carried bythe U-shape portions and disposed on opposite sides of the pipe, andmeans for vertically moving the frame relative to the fuel pipes toposition said horizontal radiants just above the flame jets so as toheat the radiants by the flame from the flame jets whereby the radiantswill radiate the heat downward, and to position the horizontal radiantsbelow the flame jets so as to permit the heat from the flame jets tocirculate upward therefrom.

2. An oven and broiler burner including a plurality of parallel fuelpipes each having flame jets along opposite sides thereof, a verticallyadjustable frame including end frame members located above opposite endportions of the fuel pipes and disposed transversely thereof, alongitudinally disposed central bar connecting'the end frame members,each end frame member having inverted, U-shape portions straddling theend portions of the pipes, horizontal imperforate radiants carried bythe U-shape portions and disposed on opposite sides of the pipe, andmeans for vertically moving the frame relative to the fuel pipes toposition said horizontal radiants just above the flame jets so as toheat the radiants by the flames from the flame jets whereby the radiantswill radiate the heat downward, and to position the horizontal radiantsbelow the flame jets so as to permit the heat from the flame jets tocirculate upwardtherefrom, and means for holding the frame in eachadjusted position.

RAYMOND J. GREENE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,699,032 Shuell et al Jan. 15,1929 1,887,408 Goehring Nov. 8, 1932 2,052,067 Zeimet Aug. 25, 19362,219,787 Parker Oct. 29, 1940 FOREIGN PATENTS Number Country Date 9,137Great Britain 1899 161,779 Germany July 1, 1905 853,322 France n Nov.28, 1940

